Home / 8,318.50-12,480.48-3,391.08

Finding the Fourth Proportional to 8,318.50, 12,480.48 and 3,391.08

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Solution

The fourth proportional to 8,318.50, 12,480.48 and 3,391.08 is: 5,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.50 : 12,480.48 = 3,391.08 : x
  2. Step 2: Convert to fraction form
    8,318.50/12,480.48 = 3,391.08/x
  3. Step 3: Cross multiply
    8,318.50x = 12,480.48 × 3,391.08
  4. Step 4: Simplify right side
    8,318.50x = 42,322,306.12
  5. Step 5: Solve for x
    x = 42,322,306.12/8,318.50
  6. Step 6: Final answer
    x = 5,087.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.